2019-Jan-25: There are two new volumes of KILLER SUDOKU out today. Enjoy!

7x7 Krypto Inky Puzzles, Volume 2

Each booklet contains a collection of eight different puzzles, with a page of answers in the back. The booklets are ordered by ascending difficulty -- the puzzles in book 100 are much harder than the puzzles in book 1. All these puzzles have a single unique solution.

These puzzles are in PDF format and can be printed from your browser or the desktop. If you like these puzzles, also check out my other puzzles.